The antihelix is the curved ridge of cartilage inside and parallel to the helix. At the top it divides into two limbs (crura) that enclose the triangular fossa.
| Location | Auricle, between the helix and the concha |
|---|---|
| Parts |
|
| Nerve Supply | Great auricular nerve; Auriculotemporal nerve; Lesser occipital nerve; Auricular branch of the vagus nerve |
| Blood Supply | Posterior auricular artery; Anterior auricular branches of the superficial temporal artery |
Shapes the auricle and helps direct sound.
An absent or poorly folded antihelix causes prominent ("bat") ears, corrected by otoplasty. Blows in wrestling, rugby and boxing can cause blood to collect over the antihelix cartilage, leading to cauliflower ear if not drained.
Blood collection under the perichondrium after a blow, needing prompt drainage.
Underfolding of the antihelix making the ears stick out.
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